Journalartikel

Jahr der Veröffentlichung: 1993

Seiten: 31-35

Zeitschrift: Physics Letters B

Bandnummer: 298

Heftnummer: 1-2

ISSN: 0370-2693

DOI Link: https://doi.org/10.1016/0370-2693(93)91701-N

Verlag: Elsevier

Abstract: 
The dynamical evolution of nucleus-nucleus collisions is described by an extended Boltzmann-Uehling-Uhlenbeck transport equation including nucleons, deltas and pions. Whereas nucleons are propagated in the conventional selfconsistent mean field, pions and deltas are treated as quasiparticles which propagate with their own selfenergies. The latter are extracted from an effective pion-dispersion relation adopted from the DELTA-hole model. Though quite substantial medium modifications are incorporated, the pion spectra and yields show only weak sensitivity to the in-medium effects. Also the dilepton signal from pi+pi- annihilation in the rho-mass region is found to be only moderately affected.

Harvard-Zitierstil: Ehehalt, W., Cassing, W., Engel, A., Mosel, U. and Wolf, G. (1993) Effects of pion and delta selfenergies in nucleus-nucleus reactions, Physics Letters B, 298(1-2), pp. 31-35. https://doi.org/10.1016/0370-2693(93)91701-N

APA-Zitierstil: Ehehalt, W., Cassing, W., Engel, A., Mosel, U., & Wolf, G. (1993). Effects of pion and delta selfenergies in nucleus-nucleus reactions. Physics Letters B. 298(1-2), 31-35. https://doi.org/10.1016/0370-2693(93)91701-N